Vergil Cola
/
MQTTGateway2
Fork of my original MQTTGateway
easy-connect/atmel-rf-driver/source/at24mac.cpp@0:a1734fe1ec4b, 2017-04-08 (annotated)
- Committer:
- vpcola
- Date:
- Sat Apr 08 14:43:14 2017 +0000
- Revision:
- 0:a1734fe1ec4b
Initial commit
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
vpcola | 0:a1734fe1ec4b | 1 | /* |
vpcola | 0:a1734fe1ec4b | 2 | * Copyright (c) 2016-2016 ARM Limited. All rights reserved. |
vpcola | 0:a1734fe1ec4b | 3 | * SPDX-License-Identifier: Apache-2.0 |
vpcola | 0:a1734fe1ec4b | 4 | * Licensed under the Apache License, Version 2.0 (the License); you may |
vpcola | 0:a1734fe1ec4b | 5 | * not use this file except in compliance with the License. |
vpcola | 0:a1734fe1ec4b | 6 | * You may obtain a copy of the License at |
vpcola | 0:a1734fe1ec4b | 7 | * |
vpcola | 0:a1734fe1ec4b | 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
vpcola | 0:a1734fe1ec4b | 9 | * |
vpcola | 0:a1734fe1ec4b | 10 | * Unless required by applicable law or agreed to in writing, software |
vpcola | 0:a1734fe1ec4b | 11 | * distributed under the License is distributed on an AS IS BASIS, WITHOUT |
vpcola | 0:a1734fe1ec4b | 12 | * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
vpcola | 0:a1734fe1ec4b | 13 | * See the License for the specific language governing permissions and |
vpcola | 0:a1734fe1ec4b | 14 | * limitations under the License. |
vpcola | 0:a1734fe1ec4b | 15 | */ |
vpcola | 0:a1734fe1ec4b | 16 | #include "at24mac.h" |
vpcola | 0:a1734fe1ec4b | 17 | |
vpcola | 0:a1734fe1ec4b | 18 | /* Device addressing */ |
vpcola | 0:a1734fe1ec4b | 19 | #define AT24MAC_EEPROM_ADDRESS (0x0A<<4) |
vpcola | 0:a1734fe1ec4b | 20 | #define AT24MAC_RW_PROTECT_ADDRESS (0x06<<4) |
vpcola | 0:a1734fe1ec4b | 21 | #define AT24MAC_SERIAL_ADDRESS (0x0B<<4) |
vpcola | 0:a1734fe1ec4b | 22 | |
vpcola | 0:a1734fe1ec4b | 23 | /* Known memory blocks */ |
vpcola | 0:a1734fe1ec4b | 24 | #define AT24MAC_SERIAL_OFFSET (0x80) |
vpcola | 0:a1734fe1ec4b | 25 | #define AT24MAC_EUI64_OFFSET (0x98) |
vpcola | 0:a1734fe1ec4b | 26 | #define AT24MAC_EUI48_OFFSET (0x9A) |
vpcola | 0:a1734fe1ec4b | 27 | |
vpcola | 0:a1734fe1ec4b | 28 | #define SERIAL_LEN 16 |
vpcola | 0:a1734fe1ec4b | 29 | #define EUI64_LEN 8 |
vpcola | 0:a1734fe1ec4b | 30 | #define EUI48_LEN 6 |
vpcola | 0:a1734fe1ec4b | 31 | |
vpcola | 0:a1734fe1ec4b | 32 | AT24Mac::AT24Mac(PinName sda, PinName scl) : _i2c(sda, scl) |
vpcola | 0:a1734fe1ec4b | 33 | { |
vpcola | 0:a1734fe1ec4b | 34 | // Do nothing |
vpcola | 0:a1734fe1ec4b | 35 | } |
vpcola | 0:a1734fe1ec4b | 36 | |
vpcola | 0:a1734fe1ec4b | 37 | int AT24Mac::read_serial(void *buf) |
vpcola | 0:a1734fe1ec4b | 38 | { |
vpcola | 0:a1734fe1ec4b | 39 | char offset = AT24MAC_SERIAL_OFFSET; |
vpcola | 0:a1734fe1ec4b | 40 | if (_i2c.write(AT24MAC_SERIAL_ADDRESS, &offset, 1, true)) |
vpcola | 0:a1734fe1ec4b | 41 | return -1; //No ACK |
vpcola | 0:a1734fe1ec4b | 42 | return _i2c.read(AT24MAC_SERIAL_ADDRESS, (char*)buf, SERIAL_LEN); |
vpcola | 0:a1734fe1ec4b | 43 | } |
vpcola | 0:a1734fe1ec4b | 44 | |
vpcola | 0:a1734fe1ec4b | 45 | int AT24Mac::read_eui64(void *buf) |
vpcola | 0:a1734fe1ec4b | 46 | { |
vpcola | 0:a1734fe1ec4b | 47 | char offset = AT24MAC_EUI64_OFFSET; |
vpcola | 0:a1734fe1ec4b | 48 | if (_i2c.write(AT24MAC_SERIAL_ADDRESS, &offset, 1, true)) |
vpcola | 0:a1734fe1ec4b | 49 | return -1; //No ACK |
vpcola | 0:a1734fe1ec4b | 50 | return _i2c.read(AT24MAC_SERIAL_ADDRESS, (char*)buf, EUI64_LEN); |
vpcola | 0:a1734fe1ec4b | 51 | } |
vpcola | 0:a1734fe1ec4b | 52 | |
vpcola | 0:a1734fe1ec4b | 53 | int AT24Mac::read_eui48(void *buf) |
vpcola | 0:a1734fe1ec4b | 54 | { |
vpcola | 0:a1734fe1ec4b | 55 | char offset = AT24MAC_EUI48_OFFSET; |
vpcola | 0:a1734fe1ec4b | 56 | if (_i2c.write(AT24MAC_SERIAL_ADDRESS, &offset, 1, true)) |
vpcola | 0:a1734fe1ec4b | 57 | return -1; //No ACK |
vpcola | 0:a1734fe1ec4b | 58 | return _i2c.read(AT24MAC_SERIAL_ADDRESS, (char*)buf, EUI48_LEN); |
vpcola | 0:a1734fe1ec4b | 59 | } |